* {
  margin: 0;
  padding: 0;
  list-style: none;
  box-sizing: border-box;
}

html,
body,
#app {
  width: 100%;
  height: 100%;
}

#app {
  display: flex;
  flex-direction: column;
}

header {
  width: 100%;
  height: 50px;
  display: flex;
  background: pink;
  justify-content: space-around;
  align-self: center;
}

main {
  width: 100%;
  flex: 1;
}

main #box {
  width: 100%;
  height: 300px;
  display: flex;
  flex-wrap: wrap;
}

main #box li {
  width: 30%;
}

main .swiper {
  width: 100%;
  height: 300px;
}

img {
  width: 60px;
  height: 30px;
}
